Hard Drive replacement failure

I dropped my iPod a month or 2 ago and broke the hard drive. I ordered a replacement, but I accidently put the replacement in upside down and tried to turn the iPod on. I realized my mistake and flipped the hard drive but not the iPod gets stuck at the Apple logo on startup. My computers (both mac and pc) will not recognize the iPod. It displays a sad face and goes into diagnostic mode without the hard drive in but with it in will not do anything. It went into disk mode with or without the hard drive before I put the hard drive in upside down but now will not go into disk mode at all.

Did I break the hard drive but putting it in upside down or what happened? Any ideas on how I can fix this?

Ok I am glad I didn't break the hard drive. I didn't actually snap the iPod together with the hard drive in upside down, just reconnected all the ribbon cables and turned it on.

I have tried more than a few times to put the iPod into disk mode. It is definitely frozen when the new hard drive is in.

I have tried using both the hard drive cable that was originally in the iPod and the new one that came with the drive. Neither work, and it is unlikely that both are broken. I may have a dysfunctional hard drive because I ordered it from a shady website based in china.

Alex: if the iPod originally had a Toshiba MK8010GAH, then it must have been an iPod video 5.5g 80GB , which according to the chart is compatible

iPod Video has two revisions: "5th Generation" (first version of the logic board, sold with 30GB and 60GB capacity ONLY) and "5.5th Generation" (second version of the logic board, sold as 30GB and 80GB ONLY). 5.5 is also known as "iPod Video 5th Generation Late 2006"

The MK8010GAH should be compatible with 5.5th Generation, and will not be compatible with 5th Generation.

"You can distinguish the iPod (5th generation Late 2006) from the original iPod (5th generation) by the last three digits of the serial number. The iPod (5th generation Late 2006) serial number's last three digits will be one of the following: V9K, V9P, V9M, V9R, V9L, V9N, V9Q, V9S, WU9, WUA, WUB, WUC, and X3N. The Fifth Generation U2 Special Edition iPod (30 GB Late 2006) serial number's last three digits are W9G."

It's possible that you might have the cable not seated correctly (I've also experience this). It needs a bit of downward pressure to ensure good contact (that's what all the foam is about, including the small piece covering the cable at the dock end). If you go to iPod DIAGNOSTIC MODE, does it recognise the disk and spin it up? In particular, does it show the driev model number and capacity correctly in the IO->HardDrive tests?

I have a 5.5 30GB and despite all diagnostics unit's hard drive is "clicking" and the Apple sad face appears. I think it is the hardrive. Any agree? Do you have a 30GB Hard Drive: Toshiba MK8010GAH for sael and how much?

FedCURE

Update

Ps. on that!

Command Enter + Play results in: Plug in to I-tunes to restore. Does this mean that the hard drive is working?